The Big Sleep

Here's a film that might tie you in knots, as it untangles with plenty of shots, quite a curious reveal, as the layers are unpeeled, a film noir that's like a dot to dot. At its core is one Philip Marlowe, takes a hold at the start - gets a tow, although why, when and who, will leave it up to you, as the suspects expand, swell and grow. In the end you might give a big sigh, you might even let escape a big cry, but there'll be no big sleep, you won't need to count sheep, unless the coil is released and you die (god forbid, there's enough of that already).

It's a great film, with great performances and you might only have to revisit it a few times to understand the make it up as you go along story.